Abstract
The energy transfer using 7-amino coumarin dyes as donor and rhodamine 590 (Rh6G) as acceptor were investigated in methanol and acetonitrile solubilized non-aqueous reverse micelles using steady state and time resolved fluorescence spectroscopy. For all donors and acceptor we have obtained higher value of overlap integral ( J( λ)) and higher value of Förster distance ( R 0). Although we have got higher value of J( λ) but the rate constant of energy transfer ( k ET) in almost all systems are small. Coumarin153–Rh6G pair is the most efficient donor acceptor pair as reflected by the value of k ET. The different value of energy transfer rate constant in case of different donors indicate the dependence of energy transfer on the structure of donors.
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